Hello!
To find the answer we need to solve for r. First we undo the parentheses.
-6r+2r+4-5=-20
Now we combine like terms.
-4r-1=-20
We add one to both sides.
-4r=-19
Divide both sides by -4.
r=4.75
I hope this helps!
The expression is equivalent to this expression is 
.
The correct option is A.
Given
The expression is;
= x(2x + 3)
<h3>What is the algebraic expression?</h3>
Algebraic expressions consist of numbers and variables along with operational signs.
The equivalent expression is found by multiplying x and simplifying.
Therefore,
The expression is equivalent to this expression is;
Hence, the expression is equivalent to this expression is .
To know more about Algebraic expression click the link given below.
brainly.com/question/953809
They are looking for the y intercept. The line of best fit passes the y axis at 1. the y axis is labeled minutes stretching. therefore the answer is
A. <span>1 minute; the number of minutes students stretch when they do not jog</span>
Answer:
youngest=115
middle=150
elder=230
Step-by-step explanation:
let the youngest be x
the middle will be x+35
the oldest will be 2x
x+x+35+2x=495
4x+35=495
4x=495-35
4x=460
x=115
since the youngest is x,the money he will receive is $115.
the middle will be x+35 which is equal to 115+35=$150.
lastly the oldest will be 2x which is equal to 2×115=$230.
Answer:
0.216
Step-by-step explanation:
If the probability of green, P(green) is 40%, the probability of red, P(red) is 60%.
The probability of a light being red is not affected by the colour of the previous light, so at each of the 3 lights, the probability of red is always 60%.
To find the probability that all three lights will be red, multiply the three probabilities together. (Convert them to decimals first).
0.6 x 0.6 x 0.6 = 0.216
